Cadillac CTS 2014–2021 — technical service bulletin
Bulletin 21NA109 · NHTSA communication 10199271 · issued May 3, 2021
Technical service bulletin
communication type
Engine
component
2014–2021
model years
60
vehicle entries
Official summary
This service bulletin provides diagnostic information for a customer concern of engine vibration.
Vehicles covered
- 2015 Cadillac CTS
- 2016 Cadillac CTS
- 2017 Cadillac CTS
- 2018 Cadillac CTS
- 2019 Cadillac CTS
- 2015 Cadillac Escalade
- 2016 Cadillac Escalade
- 2017 Cadillac Escalade
- 2018 Cadillac Escalade
- 2019 Cadillac Escalade
- 2020 Cadillac Escalade
- 2015 Cadillac Escalade Esv
- 2016 Cadillac Escalade Esv
- 2017 Cadillac Escalade Esv
- 2018 Cadillac Escalade Esv
- 2019 Cadillac Escalade Esv
- 2020 Cadillac Escalade Esv
- 2021 Cadillac Escalade Esv
- 2021 Cadillac Escalade NA
- 2016 Chevrolet Camaro
- 2017 Chevrolet Camaro
- 2018 Chevrolet Camaro
- 2019 Chevrolet Camaro
- 2020 Chevrolet Camaro
- 2021 Chevrolet Camaro
- 2016 Chevrolet Corvette
- 2017 Chevrolet Corvette
- 2018 Chevrolet Corvette
- 2019 Chevrolet Corvette
- 2016 Chevrolet Express
- 2018 Chevrolet Express
- 2019 Chevrolet Express
- 2020 Chevrolet Express
- 2021 Chevrolet Express
- 2014 Chevrolet Silverado 1500
- 2017 Chevrolet Silverado 1500
- 2018 Chevrolet Silverado 1500
- 2019 Chevrolet Silverado 1500
- 2020 Chevrolet Silverado 1500
- 2021 Chevrolet Silverado 1500
- 2015 Chevrolet Silverado 2500
- 2016 Chevrolet Silverado 2500
- 2017 Chevrolet Silverado 2500
- 2018 Chevrolet Silverado 2500
- 2019 Chevrolet Silverado 2500
- 2019 Chevrolet Silverado 4500
- 2015 Chevrolet Suburban
- 2016 Chevrolet Suburban
- 2017 Chevrolet Suburban
- 2018 Chevrolet Suburban
- 2019 Chevrolet Suburban
- 2020 Chevrolet Suburban
- 2021 Chevrolet Suburban
- 2015 Chevrolet Tahoe
- 2016 Chevrolet Tahoe
- 2017 Chevrolet Tahoe
- 2018 Chevrolet Tahoe
- 2019 Chevrolet Tahoe
- 2020 Chevrolet Tahoe
- 2021 Chevrolet Tahoe
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.